Verdant AI Plant Identifier and Care App

Overview

Verdant is a complete plant identifier and care app on Expo SDK 57 and React Native. People point the camera at a plant to name it, photograph a sick leaf to see the likely problem and what to do this week, keep their plants by room with a care schedule, and ask questions about one plant. The look is bright and photo-led: white pages, real plant photos, a near-black capsule for the main action and a fresh green accent.

With .env blank it runs in sample mode: a labelled sample garden of 12 plants in 4 rooms (3 due today), a sample health history, and designed sample AI answers marked "Sample results". What the person adds is saved on the device. Connecting Supabase and a Gemini key switches every service to the live backend without code changes.

Key features

• Camera with a framing guide, Identify and Diagnose modes, the photo library and snap tips; the web preview shows a labelled sample photo

• Identification result: the photo full width, best match, confidence as words and a three-bar meter, why it matches, pet toxicity, light, water, humidity and temperature, two look-alikes to switch to with Undo

• Health check: marked spots on the leaf, issue, signs, steps checklist, what to watch, a check-in reminder, Mark as better

• My plants: photo grid by room, "N plants need water" with Water all and Undo; each plant has care rings, a photo timeline, notes, health history and a watering-rhythm chart

• Reminders: today's done/due ring, a 7-day strip and local notifications at the person's time (Free covers 5 plants, Pro all)

• A 17-species care guide with search, problems and similar plants

• Onboarding with photo cards, a paywall, You (rooms, units, Delete my data), About, in-app Terms and Privacy, light and dark

Screens

22 screens: My plants, Identify, Identification result, Species guide, Plant health, Health check, My plant, Ask about this plant, Edit plant, Add plant, Find a plant, Reminders, You, Rooms, Welcome, Onboarding (value steps and "What do you grow?"), Verdant Pro, Photo credits, Terms, Privacy and About.

AI and backend

• identify (vision, 2 units): photo in, three matches with high/medium/low confidence, care and pet safety out

• diagnose (vision, 2 units): leaf photo in, issue, confidence, signs, steps, what to watch and up to 3 spots out; free accounts get one check

• plant-chat (text, 1 unit): a question with the plant's care record, a short answer out

• The app calls one Supabase Edge Function (ai) with an anonymous session; it charges units from a daily allowance and calls Gemini with your key

• Supabase tables for rooms, plants, care events, plant photos and scans under per-user row-level security, plus a private photo bucket

• The app asks once before the first photo or question goes to the AI provider; only what the person chooses is sent

Monetisation

Free: 3 identifications a day, 1 health check, phone reminders for 5 plants. Pro (yearly with a 7-day trial, or monthly) removes the limits. Purchases go through RevenueCat (react-native-purchases) and a webhook tells the server who has Pro. Until you connect RevenueCat to sell, the paywall shows sample prices and "Subscriptions open in the App Store version"; nothing is sold and Pro is never granted.

Reskin and photo credits

The plant words, care facets, care tasks, camera modes, onboarding choices and free limits live in src/config/domain.ts; the species in src/config/catalogue.ts; the server prompts take their domain words from DOMAIN in supabase/functions/ai/tasks.ts. The 50 bundled sample photos are CC0 or CC BY from Wikimedia Commons, iNaturalist, the WordPress photo directory and rawpixel, plus the kernel's Unsplash photos. Keep the in-app Photo credits page if you keep the photos, or replace the photos with your own.

Setup

Connect Supabase and apply the migrations, turn on the AI with your Gemini key and deploy the functions, connect RevenueCat to sell Pro, then make it yours. The README has each step.